You would use the term mocken when someone is clearly winning the arguement. It is just to show them that you don't give a shit what they think. And it will really piss them
Off after a while.

A jack off buddy (from 'cum' /'come', meaning 'semen', and 'companion'); a friend that you get together with for sessions of solo or mutual masturbation
Variant of: cumpanion (from 'companion' & 'cum'); jack off buddy & wank bud & JO buddy
Similar to: fuck buddy